JPS63153146A - Ink cartridge for ink jet recording apparatus - Google Patents
Ink cartridge for ink jet recording apparatusInfo
- Publication number
- JPS63153146A JPS63153146A JP30027086A JP30027086A JPS63153146A JP S63153146 A JPS63153146 A JP S63153146A JP 30027086 A JP30027086 A JP 30027086A JP 30027086 A JP30027086 A JP 30027086A JP S63153146 A JPS63153146 A JP S63153146A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- cartridge
- filter
- tank
- ink cartridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002245 particle Substances 0.000 abstract description 20
- 239000012535 impurity Substances 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
Landscapes
- Ink Jet (AREA)
Abstract
Description
【発明の詳細な説明】
技術分野
本発明は、たとえばインクジェットプリンタなどのイン
クジェット記録装置において、インクを補給するインク
カートリッジに関する。TECHNICAL FIELD The present invention relates to an ink cartridge for replenishing ink in an inkjet recording apparatus such as an inkjet printer.
盗」Ｕ１権
第２図は一般的な荷電制御型インクジェット記録装置の
概念図で、（１）は記録ヘッド、（２）は該記録ヘッド
（１）から噴射されたインク粒子（３）に電荷を与える
荷電電極、（４）は荷電されたインク粒子を偏向する偏
向？！！極、（５）は余分なインク粒子を回収するガタ
ー、（６）は記録用紙、（７）はメインタンク、（８）
は該メインタンク（７）とでインク供給源（９）を構成
するポンプ、（１０）はインク供給通路（１１）を制御
する電磁バルブ、 （１２）はメインタンク（７）にイ
ンク（１３）を補給するインクカートリッジで、第３図
に示すようにキャリッジ（１４）に着脱自在に装填され
る。Figure 2 is a conceptual diagram of a general charge-controlled inkjet recording device, in which (1) is the recording head, and (2) is the charge on the ink particles (3) ejected from the recording head (1). (4) is the deflection that deflects the charged ink particles. ! ! pole, (5) is the gutter that collects excess ink particles, (6) is the recording paper, (7) is the main tank, (8)
is a pump that together with the main tank (7) constitutes an ink supply source (9), (10) is a solenoid valve that controls the ink supply passage (11), and (12) is an ink (13) in the main tank (7). This is an ink cartridge for replenishing the ink, and is removably loaded into the carriage (14) as shown in FIG.
インクカートリッジ（１２）から補給されたメインタン
ク（７）内のインクは、ポンプ（８）によって加圧（た
とえば３〜７ ｋｇ／、ｆｆ１）され、インク供給通路
（１１）を通過して記録ヘッド（１）からインク粒子（
３）となって噴射される。そのインク粒子（３）は荷電
電極（２）によって荷電され、偏向電極（４）によって
偏向された後、記録用紙（６）上に吹き付けられる。そ
の余分なインク粒子（３）はガター（５）で受けられ、
メインタンク（７）に回収され、再び噴射される。The ink in the main tank (7) replenished from the ink cartridge (12) is pressurized (for example, 3 to 7 kg/, ff1) by the pump (8), and passes through the ink supply passage (11) to the recording head. (1) to ink particles (
3) and is injected. The ink particles (3) are charged by a charging electrode (2), deflected by a deflection electrode (4), and then sprayed onto a recording paper (6). The extra ink particles (3) are received by the gutter (5),
It is collected into the main tank (7) and injected again.
ところで、インク供給通路（１１）の内部には、空気中
から混入した塵埃や部品に付着していた切粉等の粒子状
不純物（以下、不純物粒子と記す）が記録ヘッド（１）
へ送り込まれないように、フィルタが数カ所に配置され
ている。すなわち、これらフィルタは、記録ヘッド（１
）の数１０ミクロン径のノズルが不純物粒子によって閉
塞され、目詰まりが生じるのを防止する。Incidentally, inside the ink supply passage (11), particulate impurities (hereinafter referred to as impurity particles) such as dust mixed in from the air and chips attached to parts are present in the recording head (1).
Filters are placed in several locations to prevent water from entering the tank. In other words, these filters
) is blocked by impurity particles, thereby preventing clogging.
したがって、フィルタのメツシュは、インク供給側から
記録ヘッド（１）に近付くにつれて次第に細くなり、記
録ヘッド（１）に一番近いフィルタではそのメツシュが
数ミクロン単位になるため、目詰まりを生じ、インク供
給通路（１１）の内圧の低下（圧損）を生じる可能性が
高い、このように圧損が生じると、インク粒子化の適正
領域がズレ、インク粒子（３）の偏向精度が悪くなり、
印字が乱れる。Therefore, the mesh of the filter gradually becomes thinner as it approaches the recording head (1) from the ink supply side, and the mesh in the filter closest to the recording head (1) is several microns, which causes clogging and ink. There is a high possibility that a decrease in the internal pressure (pressure loss) of the supply passageway (11) will occur.If such a pressure loss occurs, the appropriate area for forming ink particles will shift, and the deflection accuracy of the ink particles (3) will deteriorate.
Printing is distorted.
ところで、本発明者らの実験によれば、インクカートリ
ッジ（１２）も上記不純物粒子の発生に作用しているこ
とが判明した。近年、インクジェット記録装置の小型化
が進み、それに応じてインクカートリッジも小型化され
、その容量は小さくなっている。このため、インクカー
トリッジの交換頻度が多くなり、それからの不純物粒子
の混入も軽視できない。By the way, according to experiments conducted by the present inventors, it has been found that the ink cartridge (12) also has an effect on the generation of the impurity particles. In recent years, inkjet recording devices have become smaller, and ink cartridges have also become smaller and their capacities have become smaller. For this reason, the frequency of replacing the ink cartridge increases, and the possibility of contamination with impurity particles cannot be ignored.
目 的
本発明は、このような現状に鑑み、インクカートリッジ
からの不純物粒子の混入を単純な構成で防止することを
目的とする。Purpose In view of the current situation, it is an object of the present invention to prevent contamination of impurity particles from an ink cartridge with a simple configuration.
構成
そのため、本発明のインクカートリッジでは、第１図に
例示するように、カートリッジタンク（２１）のインク
流出部（２４）内に、その流出方向と直交する方向にフ
ィルタ（２８）を設ける。Structure Therefore, in the ink cartridge of the present invention, as illustrated in FIG. 1, a filter (28) is provided in the ink outlet (24) of the cartridge tank (21) in a direction perpendicular to the ink outlet direction.
このようなインクカートリッジでは、カートリッジタン
ク（２１）内のインク（２２）はフィルタ（２８）で濾
過された後、メインタンクへ補給される。In such an ink cartridge, the ink (22) in the cartridge tank (21) is filtered by the filter (28) and then replenished into the main tank.
次に、本発明の実施例について説明する。Next, examples of the present invention will be described.
第１図は本発明によるインクカートリッジを示し、カー
トリッジケース（２０）内に、ベローズ状の伸縮するカ
ートリッジタンク（２１）が収納され、該カートリッジ
タンク（２１）中にはインク（２２）が封入されている
。カートリッジタンク（２１）はスプリング（２３）に
よって加圧されている。FIG. 1 shows an ink cartridge according to the present invention, in which a bellows-like expandable cartridge tank (21) is housed in a cartridge case (20), and ink (22) is sealed in the cartridge tank (21). ing. The cartridge tank (21) is pressurized by a spring (23).
カートリッジタンク（２１）の突出したインク流出部（
２４）の外周面には雄ネジ（２５）が形成され、該雄ネ
ジ（２５）は、カートリッジケース（２０）の底面中央
に突出された口部（２６）の雌ネジ（２６ａ）に螺合さ
れている。また、インク流出部（２４）は、その内側に
キャンプ状のゴム栓（２７）が嵌め込んで閉塞されてい
る。The protruding ink outflow part of the cartridge tank (21) (
A male thread (25) is formed on the outer peripheral surface of the cartridge case (24), and the male thread (25) is screwed into a female thread (26a) of a mouth (26) protruding from the center of the bottom surface of the cartridge case (20). has been done. Further, the ink outflow portion (24) is closed by a camp-shaped rubber stopper (27) fitted inside the ink outflow portion (24).
このゴム栓（２７）の内端には、インク流出部（２４）
のインク流出方向と直交する方向にフィルタ（２８）が
固着されている。該フィルタ（２８）のメツシュは０．
５〜５０μｍが良く、１〜１０μｍであればさらに良い
。An ink outlet (24) is provided at the inner end of the rubber stopper (27).
A filter (28) is fixed in a direction perpendicular to the ink outflow direction. The mesh of the filter (28) is 0.
The thickness is preferably 5 to 50 μm, and even better is 1 to 10 μm.
このようなインクカートリッジをキャリッジ（図示せず
）上に搭載し、キャリッジ側の中空針（２９）をゴム栓
（２７）に突き刺すと、カートリッジタンク（２１）内
のインク（２２）はフィルタ（２８）によって濾過され
た後、中空針（２９）を通じてキャリッジ側のメインタ
ンクに補給される。When such an ink cartridge is mounted on a carriage (not shown) and the hollow needle (29) on the carriage side is inserted into the rubber stopper (27), the ink (22) in the cartridge tank (21) flows through the filter (28). ) and then supplied to the main tank on the carriage side through the hollow needle (29).
したがって、インクカートリッジのカートリッジタンク
（２１）からキャリッジ側のインク供給通路に混入する
不純物粒子はなくなり、そこに混入する不純物粒子は、
はとんどガターから混入する塵埃となり、インク供給通
路内のフィルタを詰まらせる割合は非常に少なくなる。Therefore, there are no impurity particles that enter the ink supply path on the carriage side from the cartridge tank (21) of the ink cartridge, and the impurity particles that enter there are eliminated.
Most of the dust enters from the gutter, and the rate of clogging the filter in the ink supply passage is extremely small.
効 果
以上説明したように、本発明のインクカートリッジによ
れば、インク供給系内への不純物粒子の混入がなくなり
、該インク供給系内部のフィルタの目詰まりによる内圧
の圧損が減少し、安定なインク粒子化を図ることができ
る。そのため、インク粒子の荷電と偏向の精度が向上し
、印字品質の減衰がない信頼性のあるインクジェット記
録を行うことができる。Effects As explained above, according to the ink cartridge of the present invention, the incorporation of impurity particles into the ink supply system is eliminated, the pressure drop in the internal pressure due to the clogging of the filter inside the ink supply system is reduced, and stable It is possible to form ink into particles. Therefore, the accuracy of charging and deflection of ink particles is improved, and reliable inkjet recording can be performed without deterioration of print quality.
第１図は、本発明によるインクカートリッジの断面図で
ある。第２図は荷電制御型インクジェット記録装置の概
念図、第３図はそのインクカートリッジ装填状態の説明
図である。FIG. 1 is a sectional view of an ink cartridge according to the present invention. FIG. 2 is a conceptual diagram of the charge control type inkjet recording apparatus, and FIG. 3 is an explanatory diagram of the ink cartridge loaded state.
Claims (1)
トリッジタンクからインクを補給するインクジェット記
録装置において、前記カートリッジタンクのインク流出
部内に、その流出方向と直交する方向にフィルタを設け
たことを特徴とする、インクジェット記録装置用インク
カートリッジ。 ２、前記フィルタを、前記インク流出部を内側から閉じ
ているゴム栓の内端に設けたことを特徴とする、前記特
許請求の範囲第１項に記載のインクジェット記録装置用
インクカートリッジ。[Scope of Claims] 1. In an inkjet recording device in which an ink cartridge is removably loaded and ink is supplied from the cartridge tank, a filter is provided in the ink outflow portion of the cartridge tank in a direction perpendicular to the outflow direction. An ink cartridge for an inkjet recording device, characterized by: 2. The ink cartridge for an inkjet recording apparatus according to claim 1, wherein the filter is provided at an inner end of a rubber stopper that closes the ink outflow portion from the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30027086A JPS63153146A (en) | 1986-12-17 | 1986-12-17 | Ink cartridge for ink jet recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30027086A JPS63153146A (en) | 1986-12-17 | 1986-12-17 | Ink cartridge for ink jet recording apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63153146A true JPS63153146A (en) | 1988-06-25 |
Family
ID=17882768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30027086A Pending JPS63153146A (en) | 1986-12-17 | 1986-12-17 | Ink cartridge for ink jet recording apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63153146A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0676293A2 (en) * | 1994-04-04 | 1995-10-11 | Hewlett-Packard Company | Ink jet needle humidor sealing system |
| EP0864428A2 (en) * | 1997-03-12 | 1998-09-16 | Seiko Epson Corporation | Ink cartridge for ink jet recorder and method of manufacturing same |
| WO2002028645A1 (en) * | 2000-10-06 | 2002-04-11 | Nu-Kote International, Inc. | Mechanical seal cap for ink cartridge |
| US6386693B1 (en) * | 1999-05-06 | 2002-05-14 | Artech Gmbh Design And Production In Plastic | Ink supply tank for an inkjet print head |
| US6460982B1 (en) * | 1999-01-27 | 2002-10-08 | Toshiba Tec Kabushiki Kaisha | Ink supplement system |
-
1986
- 1986-12-17 JP JP30027086A patent/JPS63153146A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0676293A2 (en) * | 1994-04-04 | 1995-10-11 | Hewlett-Packard Company | Ink jet needle humidor sealing system |
| EP0676293A3 (en) * | 1994-04-04 | 1997-10-01 | Hewlett Packard Co | Ink jet needle humidor sealing system. |
| US6854834B2 (en) | 1997-03-12 | 2005-02-15 | Seiko Epson Corporation | Ink cartridge for ink-jet recorder and method of manufacturing same |
| EP0864428A3 (en) * | 1997-03-12 | 1999-02-10 | Seiko Epson Corporation | Ink cartridge for ink jet recorder and method of manufacturing same |
| EP1046508A3 (en) * | 1997-03-12 | 2000-11-15 | Seiko Epson Corporation | Cartridge for ink-jet recorder |
| US6312115B1 (en) | 1997-03-12 | 2001-11-06 | Seiko Epson Corporation | Ink cartridge for ink jet recorder and method of manufacturing same |
| EP0864428A2 (en) * | 1997-03-12 | 1998-09-16 | Seiko Epson Corporation | Ink cartridge for ink jet recorder and method of manufacturing same |
| US6929359B2 (en) | 1997-03-12 | 2005-08-16 | Seiko Epson Corporation | Ink cartridge for ink-jet recorder and method of manufacturing same |
| US7086723B2 (en) | 1997-03-12 | 2006-08-08 | Seiko Epson Corporation | Ink cartridge for ink-jet recorder and method of manufacturing same |
| EP1598197A3 (en) * | 1997-03-12 | 2007-04-18 | Seiko Epson Corporation | Ink cartridge for ink-jet recorder |
| US6460982B1 (en) * | 1999-01-27 | 2002-10-08 | Toshiba Tec Kabushiki Kaisha | Ink supplement system |
| US6386693B1 (en) * | 1999-05-06 | 2002-05-14 | Artech Gmbh Design And Production In Plastic | Ink supply tank for an inkjet print head |
| WO2002028645A1 (en) * | 2000-10-06 | 2002-04-11 | Nu-Kote International, Inc. | Mechanical seal cap for ink cartridge |
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